I use an old (discontinued) app called DragThing that sits in the lower left corner of my desktop. It contains tabs for different project groups (Personal, Webs

I use an old (discontinued) app called DragThing that sits in the lower left corner of my desktop. It contains tabs for different project groups (Personal, Websites, Clients, etc). Each tab will have my most often used folders and I'll add / remove folders as needed. For keeping my desktop clean, I keep a "clean-up" folder that I can sweep everything into and clear it out as needed (every 6 months or so).